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NMR-based metabolomics in pediatric drug resistant epilepsy - preliminary results
Łukasz Boguszewicz1, Ewa Jamroz2, Mateusz Ciszek3
1Department of Medical Physics, Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-101, Gliwice, Poland. Lukasz.boguszewicz@io.gliwice.pl.
Insights
This study found distinct metabolic profiles in children with epilepsy, identifying specific biomarkers for monitoring treatment. These findings offer insights into the metabolic background of childhood epilepsy and potential therapeutic strategies.
Area of Science:
- Pediatric Neurology
- Metabolomics
- Biochemistry
Background:
- Childhood epilepsy is a common, complex neurological disorder with varied etiologies.
- Identifying metabolic differences in epileptic children is crucial for effective therapy monitoring.
- Current diagnostic protocols for epilepsy are extensive but may benefit from metabolic insights.
Purpose of the Study:
- To detect metabolic differences between children with epilepsy and healthy controls.
- To establish a metabolic background for monitoring epilepsy treatment in children.
- To explore the utility of NMR-based metabolomics in understanding epilepsy.
Main Methods:
- Utilized proton nuclear magnetic resonance (1H-NMR) spectroscopy on serum samples.
- Analyzed serum spectra from 28 epilepsy patients and 20 healthy children using multivariate and univariate approaches.
- Applied age variation correction during the analysis of metabolic profiles.
Main Results:
- Epileptic children exhibited elevated serum levels of N-acetyl-glycoproteins, lactate, creatine, glycine, and lipids.
- Citrate levels were significantly decreased in children with epilepsy compared to controls.
- Choline, lactate, formate, and dimethylsulfone showed significant age-related correlations.
Conclusions:
- NMR-based metabolomics can provide dynamic metabolic process information in drug-resistant epilepsy.
- Metabolic profiling may yield disease-specific biomarkers for epilepsy.
- These insights can enhance understanding of epilepsy progression, treatment efficacy, and drug toxicity.
Abstract:
Epilepsy in children is the most frequent, heterogeneous and difficult to classify chronic neurologic condition with the etiology found in 35-40% of patients. Our aim is to detect the metabolic differences between the epileptic children and the children with no neurological abnormalities in order to define the metabolic background for therapy monitoring. The studied group included 28 epilepsy patients (median age 12 months) examined with a diagnostic protocol including EEG, videoEEG, 24-hour-EEG, tests for inborn errors of metabolism, chromosomal analysis and molecular study. The reference group consisted of 20 patients (median age 20 months) with no neurological symptoms, no development delay nor chronic diseases. 1H-NMR serum spectra were acquired on 400 MHz spectrometer and analyzed using multivariate and univariate approach with the application of correction for age variation. The epilepsy group was characterized by increased levels of serum N-acetyl-glycoproteins, lactate, creatine, glycine and lipids, whereas the levels of citrate were decreased as compared to the reference group. Choline, lactate, formate and dimethylsulfone were significantly correlated with age. NMR-based metabolomics could provide information on the dynamic metabolic processes in drug-resistant epilepsy yielding not only disease-specific biomarkers but also profound insights into the disease course, treatment effects or drug toxicity.
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